EP0893900A3 - Modulator - Google Patents
Modulator Download PDFInfo
- Publication number
- EP0893900A3 EP0893900A3 EP98113817A EP98113817A EP0893900A3 EP 0893900 A3 EP0893900 A3 EP 0893900A3 EP 98113817 A EP98113817 A EP 98113817A EP 98113817 A EP98113817 A EP 98113817A EP 0893900 A3 EP0893900 A3 EP 0893900A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- generates
- sampling rate
- discrete
- generating portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Amplitude Modulation (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19891997 | 1997-07-24 | ||
JP9198919A JPH1141305A (ja) | 1997-07-24 | 1997-07-24 | 変調装置 |
JP198919/97 | 1997-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0893900A2 EP0893900A2 (en) | 1999-01-27 |
EP0893900A3 true EP0893900A3 (en) | 2002-02-06 |
Family
ID=16399150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98113817A Withdrawn EP0893900A3 (en) | 1997-07-24 | 1998-07-23 | Modulator |
Country Status (4)
Country | Link |
---|---|
US (1) | US6184756B1 (ja) |
EP (1) | EP0893900A3 (ja) |
JP (1) | JPH1141305A (ja) |
CN (1) | CN1207621A (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003520481A (ja) * | 2000-01-07 | 2003-07-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 符号器における予測フィルタのための係数の生成 |
GB2359950B (en) * | 2000-02-29 | 2004-06-30 | Ericsson Telefon Ab L M | Signal filtering |
JP5274014B2 (ja) * | 2004-10-13 | 2013-08-28 | メディアテック インコーポレーテッド | 通信システム用フィルタ |
US7342525B2 (en) * | 2005-12-23 | 2008-03-11 | Cirrus Logic, Inc. | Sample rate conversion combined with DSM |
US7242326B1 (en) * | 2005-12-23 | 2007-07-10 | Cirrus Logic, Inc. | Sample rate conversion combined with filter |
EP3157112A1 (en) * | 2015-10-12 | 2017-04-19 | General Electric Technology GmbH | Improvements in or relating to the protection of power transformers |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003002A (en) * | 1974-09-12 | 1977-01-11 | U.S. Philips Corporation | Modulation and filtering device |
DE4041632A1 (de) * | 1990-03-15 | 1992-07-02 | Ant Nachrichtentech | Verfahren zur aufbereitung von mehreren fernsehsignalen fuer uebertragungszwecke sowie anwendung |
FR2689350A1 (fr) * | 1992-03-30 | 1993-10-01 | France Telecom | Modulateur d'amplitude à bande latérale résiduelle pour signaux analogiques échantillonnés ou numériques et son utilisation en télévision. |
EP0651526A2 (de) * | 1993-10-30 | 1995-05-03 | Robert Bosch Gmbh | Verfahren zur Aufbereitung eines digitalen Frequenzmultiplexsignals |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5420887A (en) | 1992-03-26 | 1995-05-30 | Pacific Communication Sciences | Programmable digital modulator and methods of modulating digital data |
JPH06152675A (ja) | 1992-11-05 | 1994-05-31 | N T T Idou Tsuushinmou Kk | ディジタル変調器 |
JP3400003B2 (ja) | 1993-02-18 | 2003-04-28 | 株式会社日立製作所 | 複素変復調方式 |
US5519732A (en) * | 1994-05-02 | 1996-05-21 | Harris Corporation | Digital baseband to IF conversion in cellular base stations |
US5783974A (en) * | 1997-01-27 | 1998-07-21 | Hitachi America, Ltd. | Digital interpolation up sampling circuit and digital modulator using same |
-
1997
- 1997-07-24 JP JP9198919A patent/JPH1141305A/ja active Pending
-
1998
- 1998-07-21 US US09/119,644 patent/US6184756B1/en not_active Expired - Lifetime
- 1998-07-23 EP EP98113817A patent/EP0893900A3/en not_active Withdrawn
- 1998-07-24 CN CN98116396A patent/CN1207621A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003002A (en) * | 1974-09-12 | 1977-01-11 | U.S. Philips Corporation | Modulation and filtering device |
DE4041632A1 (de) * | 1990-03-15 | 1992-07-02 | Ant Nachrichtentech | Verfahren zur aufbereitung von mehreren fernsehsignalen fuer uebertragungszwecke sowie anwendung |
FR2689350A1 (fr) * | 1992-03-30 | 1993-10-01 | France Telecom | Modulateur d'amplitude à bande latérale résiduelle pour signaux analogiques échantillonnés ou numériques et son utilisation en télévision. |
EP0651526A2 (de) * | 1993-10-30 | 1995-05-03 | Robert Bosch Gmbh | Verfahren zur Aufbereitung eines digitalen Frequenzmultiplexsignals |
Also Published As
Publication number | Publication date |
---|---|
US6184756B1 (en) | 2001-02-06 |
EP0893900A2 (en) | 1999-01-27 |
JPH1141305A (ja) | 1999-02-12 |
CN1207621A (zh) | 1999-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0954107A3 (en) | Sigma-delta modulator and digitizing method | |
EP0822670A3 (en) | Sequence generation for asynchronous spread spectrum communication | |
EP0748092A3 (en) | Modulation method and modulator for digital signal | |
EP0975193A3 (en) | Air interface frame formatting | |
EP1160984A3 (en) | Phase-locked loop with improved trade-off between lock-up time and power dissipation | |
CA2224572A1 (en) | Radio with peak power and bandwidth efficient modulation | |
CA2043413A1 (en) | Dual mode power amplifier for radiotelephone | |
EP0864901A3 (en) | Gas-damped micromechanical modulator | |
EP0945393A3 (en) | Four track crawler crane | |
EP1081863A3 (en) | Delta-sigma modulator with two-step quantization, and method for using two-step quantization in delta-sigma modulation | |
EP1096712A3 (en) | Path network and path network operation method using conversion of protection path into working path | |
EP0783211A3 (en) | Remote meter reading system | |
EP0713298A3 (en) | Transmitter and two-way radio set | |
EP0757446A3 (en) | Analogue to digital and digital to analogue converters | |
EP0397077A3 (en) | A system for interrupting a transmitter output wave | |
MXPA03000757A (es) | UNA TECNICA DE MODULACION PARA TRANSMITIR UNA SEnAL DE ALTA VELOCIDAD DE TRANSFERENCIA DE DATOS, Y UNA SEnAL DE DATOS AUXILIAR, A TRAVES DE UN CANAL LIMITADO DE BANDA. | |
EP0762665A3 (en) | Spread spectrum communication system | |
MY123608A (en) | A modulation technique providing high data rate through band limited channels | |
EP0836339A3 (en) | High speed data services for DECT/GSM interworking | |
EP0893900A3 (en) | Modulator | |
EP0869623A3 (en) | Method and apparatus for spectrally efficient transmission of CDMA modulated signals | |
EP0798865A3 (en) | Digital data converter | |
EP0786873A3 (en) | Sequential gain transceiver | |
WO1999056446A3 (en) | Video rate d/a converter with sigma-delta modulator | |
EP0845855A3 (en) | Voltage controlled oscillator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Kind code of ref document: A2 Designated state(s): DE ES FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20020730 |
|
AKX | Designation fees paid |
Free format text: DE ES FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20070531 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20071011 |